Hi John I've built decks and maintained them to look like new every spring , you can cut your costs as I have ample premium oil for your deck , If you like I can easily do your slate job and this job on same day .Cheers again Gareth

Well unfortunately John I'll have to remove my offer. As doing a job like this is very hard work on your hands and knees sanding all day. It actully only leaves about $285 after fees and materials. Sorry to waste your time :)